Relative humidity of a sealed flask of air can be changed by changing the air s temperature or by
a. shining light on the flask.
b. adding or removing water vapor.
c. bringing the flask to a different latitude.
d. adding or removing particles of soil.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.